Heating system.



R. M. DIXON. HEATING SYSTEM. APPLICATION FILED JULY 16, 1908..

Patented Dec. 24, 1912.

UNI ED STATES- PATENT OFFICE.

ROBERT M. DIXON, OF EAST ORAN GE,'I\TEW JERSEY, ASSIGNOR TO SAFETY CAR HEATING & LIGHTING COMPANY,

A CORPORATION OF NEW JERSEY.

HEAFING SYSTEM.

To all whom 'it mog concern.-

Be it known that I, Roima'r M. .DIX'ON, a citizen of the United States, residing at East Orange, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Heating Systems, .of which the following is a full,r.clear, and such as will enableothers it appertains to exact description, ski-l led in the art to which make and use the same.

This invention and more particularly to heating apparatus adapted for use in railway cars or similar structures.

One object thereof is toprovide an improved lOW pressure heating system of the above character such thatthe same, while automatically regulated, is self-contained.

Other objects will be in part obvious-and in part pointed out hereinafter."

The invention accordingly consists in the features of construction, ments and arrangement beexemplitied in the construction hereinafter set forth, and the scope of the application-of which will be indicated in the appended claims,

of parts which will In the accompanying drawing, wherein is illustrated one of the various possible embodiments of my invention, Figure 1 is a View in perspectiveshowing a portion of the floor plan of a railway-car, and a heating system for one side of the car constructed in accordance with the invention. "Fig. 2 is a plan view of a portion of the system partially in sectionyand Fig. 3 is a vertical sectional viewiaken on line -3-3 of Fig. 2.

Similarreference characters refer to similar parts throughout the several views of the dra wing.

Referring now to the drawing 1 indicatesthe floor of a railway'car upon either side of which is arranged independent radiat ng systems, each system receiving its supply of steam from the train pipe 2 through branch plpes, one of which is shown at 3. Inasmuch as the radiating systems arranged upon each side ofthe car are IdGntI'al-ln construction and'operation, butone of said systems'has been shown herein, and a description thereof will, it is thought, sufiico to impart a clear understanding of the nvention. i

The radiating system comprises a line of' relates to heating systems combinations of ele- Specification of Letters Patent. Patented Dec. 24, 19 12 Application filed July 16, i

1908. Serial No..44s;7s0.

, connected of the car is conducted to a special'fitting 5. This fitting which forms the feed end of the sys- ;tem is provided with an injector 6 which in the ,presentinstance forms an integral part 'ofthe fittinge SteanTbassing through this injector to the upper le along back, through the bottom pipe 8 and returns by the top pipe, 10 on-the right, A conduit 11 connects" the endof pipelO with fitting fadjace iit the be unders struction the injector assists the circulation of the heating mediumby drawing the vapor around the above described circuit.

A valve 12 is located within fitting 5 and cooperating with a seat 13 to regulate the flow ofsteam through the injector. This valve is adapted to' be thermostatically controlled whereby the flow-of steamthrough withthe internalheat'conditions of the sys- 'tem.' In the present instance, the theremo static regulating means is comprised bythe radiating system itself. Fitting 5 is attached'to the sidewall of thecar, as by means of a strap 14, so as to be held against movement, Pipe adjacent the endof the car is similarly attached to the side wall by means ofa strap:15.' The opposite end of pipe 10 is therefore freeto move when said pipe expands or contracts. The stem 16 of valve 12 extends through the gland 17 car- "formed upon ,an elbow ried by fitting 5 and is held against rotation "byiiieans of a spline l8. The outer end of stem 16'is threaded to receive a threaded member 20 which .is threaded to a stem 21 22 which connects conduit 11 with the pipe connected with the return end of pipe 10, during a movement of the latter caused by the expansioncr contraction thereof, will be moved toward or froin its seat, and it will be observed that the position of valve 12 with respect to its seat may be adjusted by the rotation ofthe member 20.

12, member 20 is provided exteriorly with teeth 23, constituting it a -spur gear, and a worm 24 cooperates with the teeth of the spur gear to rotate member QO, said worm 'bemgmounted upon a shaft 25 which e2 to .the system through an inlet valve 4 and t hand pipe 7 passes in ector, and it will God that by reason of this con-' 10. Valve 12ibeing the injector may be regulated inaccordance In order conveniently to adjust the valve the handle-26 is such as to allow steam to pass from the train pipe through the injector and into the radiating system. When the steam passes around through the system and at last reaches the upper right hand pipe 10, the expansion of that pipe will tend to close the valve and reduce the amount of steam which will be admitted to the system, The steam passing through the injector will, of course, draw in vapor from-the return end of the system through conduit 11 whereupon the same will again circulate through the svstem. The injector, therefore, accelerates the circulation of the heating medium.

It will accordingly be seen that I have provided a construction well adapted to attain, among others, all the objects above enumerated, in a simple yet efiicient man her. The system is comprised of relatively few parts, and is therefore not liable to become deranged. An important advantage inherent in the present construction is that the entire system is regulated by the adjustment of a single valve, and when said adjustment has been made, the entire system is thereafter subject to automatic control.

As many changes could be made in the above construction and many apparently a widely different embodiments'of this invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the language used in the following claims is in tended to cover all of the generic and specific features of the invention herein described and all statements of the scope of theinvention, which, as a matter of lan- 'guage, might be said to" fall therebetween.

Having described my invention, what I claim as new and desire. to secure by' Letters Patent is:

1. In a heating system, in combination, a system of piping comprising an offset conncction between the inlet and discharge ends thereof whereby the heating fluid is permitt d to recirculatc therein and whereby relative movement of said inlet. and discharge ends is permitted through the movement of said offset connection, a valve member controlling the admission of steam mounted within the inlet portion of said system, a seat member co-acting with said valve, a connection between one of said members and the discharge portion of said system and a connection between the other of said members and a stationary part, whereby the movement of said valve member relative to sid seat member is controlled in accordance with the thermostatic action of the discharge portion. of said system.

2. A heating system comprising, in combination, a line of connected piping, the feed and return ends of which lie in adjacency, means for holding the feed end of said system against movement, means for holding. a

portion of the return end of said system against movement at a point remote from the feed end of 'saidsystem, means for supplying steam to the feed end of said system, a valve for controlling the admission of steam therein, and a connection interposed between said valve and the return end of said system.

3. In a heating system for railway cars or like structures, in combination, a line of connected piping forming a radiating system, the feed and return ends of whic lie in adjacency, means for attaching the/feed end of said system to the car, whereby the same is 'held against movement, means for attaching a portion of said piping to the car i at a point remote from the return end thereof, whereby said return end of said system is free to move with relation to the feed end thereof; when it expands or contracts, an injector located in the feed end of said system, means for conducting the steam from the train pipe to said injector, a conduit connecting the return end of said system with the injector whereby vapor flowing through the system will be delivered to said injector, a valve located in the feed end of said system and adapted to control the flow of steam through said injector, and imeans for adj ustably connecting the stem of said valve with the return end of said system.

t. In car heating apparatus, in combination, a line of connected pipingcomprising lbc said valve, one of said members being mounted to move with the adjacent piping and the other of said members being con nccted with a stationary-part, and meap tween said point and tion, a lineiiof connected the admission valve seat member coacting with said valve,

piping stationary, at said injector fitting a radiating system, the feed and return ends of which lie adjacent one another, an injector fitting interposed. between said feed and return ends whereby the discharge from said return end may pass into the feed end through one portion of the injector, means adapted to lead steam to the other portion of said injector,

a valve member controlling of steam therethrough, a

one of said members being mounted to move with the adjacent piping and the other of said members moved and said eing connected with a statlonary part, means adapted to hold said piping stationar at a point spaced from said injector fittlng whereby said fitting is valve member is moved relative to its seat in accordance with the expansion and contraction of the radiating piping interposed'between said point and sai' injector, and a trap connected with said radiating from the piping controlling said valve.

fiiln a heating system for railway cars or like structures, in combination, a radiating system comprismg a l ne of connected p1p1ng, the feed he n adjacency intermediate the ends of -tiresear, an injector located in the feed end holding the return tion of rating system comprising a line of connect-- e d piping, the feed of said system, means for conducting steam from the train' pipe to said injector, a conduit connecting the return end of said system with said injector, a valve'controlling the flow of steam through said injector, means for connecting the stem of said valve with the return end of said system, means portion of said piping at a point spaced from said inwhereby the expansion or contrasthe latter will move .said valve, means operating through said connecting means for moving said valve toward or from its seat and a valve seat coacting with said valve andconnected with a relatively stationary member. a 7. Inn heating system for or like structures,

stationary jector,

railway cars 1n comblnatlon, a .rad1- and return ends of which he in ad acency intermediate the ends of the car, means for attaching the feed end of said system to the car, means for attaching a portion of said piping E0 the car at a polnt remote from the return end thereof, whereby said return end is free to move by the expansion or contraction of said piping, :1 antomatically controlling said valve' in acmoved and said valve the train pipe to ssa-id radiator charge end thereof is led, system at a point remote andretnrn onus of which I 'ator, and means controlled carv body adapted to adjust discharge from,

whereby steam ls recirculated there1n,-a trap aninjector located in the feed end of said system, means for conducting steam from said in ector, a conduit extending beta: 11 the return end of said system and said injectoga valve for con-' trolling the flow of steam through said injector, said valvebeingprovided with'a threaded stem, from the return end of said system, her threaded upon said stems .when rotated to move said valve toward or from its seat, a spur gear formed upon said a mema threaded stem extending and adapted member, and a worm operating With'said spur gear to rotate said member.

8. In heatingapparatus, in combination, a circulating system comprising a radiator and means leading the discharge from means, including a. portion of said radiator, for controlling said'valve in accordance with the temperature of said portion of said radiator.

9. In heating apparatus, in combination, a circulating system comprising i a radiator and means leading the discharge from said radiator into the feed end thereof, an injector'positioned in said system through one portion of which the steam from the disa valve adapted to admit steam into said system through the other portion of'said injector, and means, in-

vcluding a portion of said radiator, for controlling said valve in accordance with the temperature of said portion of said radiator.

10. In car heating radiator and' means returning discharge from said radiator thereinto whereby steam is recirculated therethrough, a valve COD: trolling the circulation of steam therein, means adapted to hold said radiator stationary at one point, and. means connected with said radiator ata pointspaced therefrom adapted to utilize the expansion and contraction ofthe intermediate portion of said radiator to control said valve.

11. In heating apparatus, in combination, a clrculatlng system comprlsing a radiator within a car body and means leading discharge from said radiator into the feed end thereof, a valve adapted to admit steam from without said car bodyinto said system, means, including a-portion of said radiator, for controlling said valve in accordance with apparatus, in combi-, nation, a, circulating system comprising a into the feed'end thereof, a i valve adapted to admit-"steam into; said system, and

the temperature of said portion of said radifrom within the said valve.

12. In'hcating apparatus, in combination, a radiator, a valve controlling the admissirfii of steam to said radiator, means returning said radiator thereinto connected with said radiator, and means cordance with the temperature of the fluid Within said radiator at a point remote from said trap, said automatic controlling means comprising a connection between said valve and a portion of said radiator and means adapted to hold said radiator stationary at a point spaced therefrom.

13. In a heating system, in combination, an inlet valve, a radiating conduit leading from said inlet valve to a drainage passage, a radiating conduit continuing said first radiating conduit past said drainage passage, suction means adjacent the end of said second radiating conduit tending to draw steam therefrom, and means, including a portion of said second conduit, for controlling said inlet valve in accordance with the expansion and contraction of said portion of said second conduit.

14L. In heatingapparatns, in combination,

a heating system comprising a conduit hav- I ing a connecting portion to form a complete circuit whereby steam passing therethrough is recirculated therein, said connecting portion being partially out of allnement with; the pipes which it connects and adapted to permit relative movement thereof, a valve mounted in said conduit at one side of said connecting portion and controlling the ad mission of steam to the system, and a connection between said valve and the conduit at the other side of said connecting portion whereby said valve is controlled in accordance With the expansion of said lastmen tioned portion of said conduit.

In testimony whereof I aflix my signature, in the presence of tvvo Witnesses.

ROBERT M. DIXON.

Witnesses JOHN T. CLARK,

E, E. ALLBEE. 

